34.07/10.24 YES 34.07/10.27 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 34.07/10.27 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 34.07/10.27 34.07/10.27 34.07/10.27 Termination w.r.t. Q of the given QTRS could be proven: 34.07/10.27 34.07/10.27 (0) QTRS 34.07/10.27 (1) DependencyPairsProof [EQUIVALENT, 11 ms] 34.07/10.27 (2) QDP 34.07/10.27 (3) DependencyGraphProof [EQUIVALENT, 0 ms] 34.07/10.27 (4) QDP 34.07/10.27 (5) QDPOrderProof [EQUIVALENT, 205 ms] 34.07/10.27 (6) QDP 34.07/10.27 (7) QDPOrderProof [EQUIVALENT, 70 ms] 34.07/10.27 (8) QDP 34.07/10.27 (9) PisEmptyProof [EQUIVALENT, 0 ms] 34.07/10.27 (10) YES 34.07/10.27 34.07/10.27 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (0) 34.07/10.27 Obligation: 34.07/10.27 Q restricted rewrite system: 34.07/10.27 The TRS R consists of the following rules: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 Q is empty. 34.07/10.27 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (1) DependencyPairsProof (EQUIVALENT) 34.07/10.27 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (2) 34.07/10.27 Obligation: 34.07/10.27 Q DP problem: 34.07/10.27 The TRS P consists of the following rules: 34.07/10.27 34.07/10.27 A(b(b(x1))) -> B(b(a(b(c(a(x1)))))) 34.07/10.27 A(b(b(x1))) -> B(a(b(c(a(x1))))) 34.07/10.27 A(b(b(x1))) -> A(b(c(a(x1)))) 34.07/10.27 A(b(b(x1))) -> B(c(a(x1))) 34.07/10.27 A(b(b(x1))) -> A(x1) 34.07/10.27 34.07/10.27 The TRS R consists of the following rules: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 Q is empty. 34.07/10.27 We have to consider all minimal (P,Q,R)-chains. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (3) DependencyGraphProof (EQUIVALENT) 34.07/10.27 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 3 less nodes. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (4) 34.07/10.27 Obligation: 34.07/10.27 Q DP problem: 34.07/10.27 The TRS P consists of the following rules: 34.07/10.27 34.07/10.27 A(b(b(x1))) -> A(x1) 34.07/10.27 A(b(b(x1))) -> A(b(c(a(x1)))) 34.07/10.27 34.07/10.27 The TRS R consists of the following rules: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 Q is empty. 34.07/10.27 We have to consider all minimal (P,Q,R)-chains. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (5) QDPOrderProof (EQUIVALENT) 34.07/10.27 We use the reduction pair processor [LPAR04,JAR06]. 34.07/10.27 34.07/10.27 34.07/10.27 The following pairs can be oriented strictly and are deleted. 34.07/10.27 34.07/10.27 A(b(b(x1))) -> A(x1) 34.07/10.27 The remaining pairs can at least be oriented weakly. 34.07/10.27 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(A(x_1)) = [[0A]] + [[0A, 0A, 1A]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(b(x_1)) = [[0A], [-I], [0A]] + [[0A, -I, 0A], [-I, 0A, 0A], [0A, 1A, 0A]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(c(x_1)) = [[0A], [-I], [-I]] + [[0A, 0A, 0A], [-I, 0A, -I], [-I, 0A, -I]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(a(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [-I, 0A, -I], [0A, 1A, 0A]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 34.07/10.27 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (6) 34.07/10.27 Obligation: 34.07/10.27 Q DP problem: 34.07/10.27 The TRS P consists of the following rules: 34.07/10.27 34.07/10.27 A(b(b(x1))) -> A(b(c(a(x1)))) 34.07/10.27 34.07/10.27 The TRS R consists of the following rules: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 Q is empty. 34.07/10.27 We have to consider all minimal (P,Q,R)-chains. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (7) QDPOrderProof (EQUIVALENT) 34.07/10.27 We use the reduction pair processor [LPAR04,JAR06]. 34.07/10.27 34.07/10.27 34.07/10.27 The following pairs can be oriented strictly and are deleted. 34.07/10.27 34.07/10.27 A(b(b(x1))) -> A(b(c(a(x1)))) 34.07/10.27 The remaining pairs can at least be oriented weakly. 34.07/10.27 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(A(x_1)) = [[-I]] + [[0A, -I, -I]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(b(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, 1A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [0A, -I, 0A], [-I, -I, -I]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 <<< 34.07/10.27 POL(a(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [0A, 0A, -I], [0A, 0A, 0A]] * x_1 34.07/10.27 >>> 34.07/10.27 34.07/10.27 34.07/10.27 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (8) 34.07/10.27 Obligation: 34.07/10.27 Q DP problem: 34.07/10.27 P is empty. 34.07/10.27 The TRS R consists of the following rules: 34.07/10.27 34.07/10.27 a(x1) -> x1 34.07/10.27 a(b(b(x1))) -> b(b(a(b(c(a(x1)))))) 34.07/10.27 b(c(x1)) -> x1 34.07/10.27 34.07/10.27 Q is empty. 34.07/10.27 We have to consider all minimal (P,Q,R)-chains. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (9) PisEmptyProof (EQUIVALENT) 34.07/10.27 The TRS P is empty. Hence, there is no (P,Q,R) chain. 34.07/10.27 ---------------------------------------- 34.07/10.27 34.07/10.27 (10) 34.07/10.27 YES 34.52/11.42 EOF